9.1 Activity- Balancing Chemical Equations PDF

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Balancing Chemical Equations (Phet Simulation) Student Worksheet Instructions: 1. On computer, access the internet and go to: https://phet.colorado.edu/sims/html/balancing-chemical-equations/latest/balancing-chemical-equations_en.html 2. Begin with INTRODUCTION activity to complete the chart. 3. Select balance scale from TOOLS in top-right pull down menu to complete last column in chart. Draw a balanced scale with correct number and color of Balancing chemical Draw molecular model of balanced chemical Chemical Equation atoms for each element. equations for the equation – Color the atoms for each element in ** with correct number for the compounds coefficients** following reactions: Make Ammonia

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__ N2 + __H2  __NH3

Separate Water

__ H2O  __ H2 + __ O2

Combust Methane

__ CH4 + __ O2  __ CO2 + __ H2O

Extension – Part Two: Game 1. To access game, go to same website or PhET app for Balancing Chemical Equations, and select GAME (happy face icon). 2. Begin with Level 1, to balance chemical equations. As you improve your ability to balance chemical equations, you can advance to Level 2, then Level 3. Levels become more challenging. 3. Use the chart below to fill in equations you have successfully balanced at each level, underlining the coefficients in each chemical equation. Level 1

Level 2

Level 3...